Curious if that means putting more CO2 in the atmosphere than if we tossed the old plastic in a landfill and refined oil instead.
That's the fallacy of many of these bio-things, more emissions. Keeping consumption habits and dampening our guilt with green washing is not the solution. The keyword is: less.
Lego promote the idea of less too. They make durable products and through Lego Replay they will find a good home for your unwanted Lego bricks.